Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=54456
If the client aborts the request, make sure this is communicated to the application reading the request body.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/tc7.0.x/trunk@1443430 13f79535-47bb-0310-9956-ffa450edef68